首先就是无论你采用哪种方法，都要在 functions.php 中加入如下代码:

add_action( 'comment_post','save_comment_meta_data' ); function save_comment_meta_data( $comment_id ) { add_comment_meta( $comment_id, 'sinawb', $_POST['sinawb'] ); $expire = time() + 99999999; $domain = ($_SERVER['HTTP_HOST'] != 'localhost') ? $_SERVER['HTTP_HOST'] : false; // make cookies work with localhost setcookie('bigfa_sinawb',$_POST['sinawb'],$expire,'/',$domain,false); } add_filter( 'get_comment_author_link', 'attach_twitter_to_author' ); function attach_twitter_to_author( $author ) { $tw = get_comment_meta( get_comment_ID(), 'sinawb', true ); if($tw) $author .= " / <a href='<a href="http://weibo.com/n/$tw">http://weibo.com/n/$tw</a>' title='@$tw' target='_blank'>@$tw</a>"; return $author; }

如果是自定义评论，则在 comments.php 相应位置:

如果是默认的comment_form，则下面的代码加到 functions.php 中:

add_filter( 'comment_form_defaults', 'change_comment_form_defaults'); function change_comment_form_defaults($default) { $commenter = wp_get_current_commenter(); $default['fields']['url'] .= '<p class="comment-form-author"><label id="author_sinawb" for="sinawb">Weibo<input id="sinawb" type="text" tabindex="5" value="'; if(isset($_COOKIE['bigfa_sinawb'])) $default['fields']['url'] .= $_COOKIE['bigfa_sinawb']; $default['fields']['url'] .='" name="sinawb"></label></p>'; return $default; }